AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE

October 21, 2014

(See Specifications for Complete Details.)

Matls. IM 209

Supersedes October 15, 2013

 

Appendix C

 

 

 

TEST LIMITS

Spec #

F & T

A

F & T

C

LA Abrasion

Absorption

Chert

Shale

Clay Lumps

Plastic Index

Mortar Strength

Al₂O₃ Limit

Pore Index

Gradation Number

Fine Aggregate for PCC

PCC

4110

 

 

 

 

 

2

 

 

 

 

 

1

 

 

Note: Maximum 40% between sieves

 

 

Note: The fineness modulus must be no lower than 2.60. A target fineness modulus (or base-line) will be established for each source for continued approval.

 

 

Note: Shale + Coal not to exceed 2% max.

PCC, Class L

4111

 

 

 

 

 

2

 

 

 

 

 

1

 

 

Note: Only from approved PCC sources.

 

 

Note: Maximum 45% between sieves and must have a fineness modulus no lower than 2.30.

 

 

Note: Shale + Coal not to exceed 2%max.

Intermediate Aggregate for PCC

Crushed Stone and Pea Gravel

4112

6

 

 

 

 

 

0.5

 

 

0.5

 

2

 

 

Note: For Pea Gravel see Table 4112.03-2 for maximum allowable objectionable materials

Coarse Aggregate for PCC

Crushed Stone

4115

 

 

 

 

 

 

 

 

 

 

 

 

-Structural

 

6

 

50

 

2

1

0.5

 

 

0.5

 

3-5

-Nonstructural

 

6

 

50

 

3

1

0.5

 

 

0.5

 

3-5

 

 

Note: See 4115.02 for maximum allowable objectionable materials.

Gravel

4115

 

 

 

 

 

 

 

 

 

 

 

 

-Structural

 

6

 

35

 

2

1

0.5

 

 

 

 

3-5

-Nonstructural

 

6

 

35

 

3

1

0.5

 

 

 

 

3-5

 

 

Note: See 4115.02 for maximum allowable objectionable materials.

Bridge Deck

 

 

 

 

 

 

 

 

 

 

 

 

 

-Surfacing, Repair & Overlay

 

6

 

40

2.5

0.5

 

 

 

 

0.4

 

6

 

 

Note: Unsound Chert+Shale+Coal+Iron not to exceed 1%.

 

 

Note: Unsound Chert particles are defined in 4115.02.

 


 

 

AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE

October 21, 2014

(See Specifications for Complete Details.)

Matls. IM 209

Supersedes October 15, 2013

 

Appendix C

 

 

 

TEST LIMITS

Spec #

F & T

A

F & T

C

LA Abrasion

Absorption

Chert

Shale

Clay Lumps

Plastic Index

Mortar Strength

Al₂O₃ Limit

Pore Index

Gradation Number

Class V Aggregate

 

4117

6

 

40

 

 

2 (+#16)

 

 

1.5

 

 

7

 

 

Note: Coarse Aggregates as in 4115 (except abrasion) and Fine Aggregates as in 4110.

Combination of Materials With Class V

Coarse Limestone

 

 

 

 

 

 

 

 

 

 

 

 

 

Limestone Screenings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: See 4117 for cement requirements.

 

 

Note: Acquire limestone from sources meeting the specified coarse aggregate durability class for PCC.

 

 

Note: Must meet the requirements of 4115 and be only from sources acceptable as coarse aggregate.

8

Pipe Bedding for PCC

Aggregate

4118.02

 

15

50

 

 

 

 

 

 

 

 

3

 

 

Note: >75% Crushed Gravel or Crushed Stone. Crushed PCC may be used if approved by the Engineer

Pipe Backfill

Aggregate

4119.02

 

15

45

 

 

 

 

 

 

 

 

10,11

 

 

Note: >75% Crushed Gravel or Crushed Stone. Crushed PCC may be used if approved by the Engineer.

Granular Surfacing

Aggregate for Granular Shoulders

4120.02

 

 

 

 

 

 

 

 

 

 

 

Per 4120.02

 

 

Note: Requirements are equivalent to 4120.04, 4120.05 or 4120.06.

Class C Gravel

4120.03

 

15

 

 

 

10

 

 

 

 

 

10

 

 

Note: Percent of Clay Lumps + percent passing #200 sieve not to exceed 15%.

 

 

Note: Percent of Clay Lumps + percent of (+4) shale + percent passing #200 not to exceed 20%.

Class A Crushed Stone

4120.04

 

15

45

 

 

 

4

 

 

 

 

11

 

 

Note: For shoulders only; material with Al₂O₃ not exceeding 0.7 or A-freeze not exceeding 10 may have an abrasion Stone maximum of 55.

Class B Crushed Stone

4120.05

 

20

55

 

 

 

4

 

 

 

 

11

 

 

Note: C Freeze + Abrasion not to exceed 65%

Class D Crushed Stone

4120.06

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: C Freeze, Abrasion, and Gradation to be specified by Contract Documents.

Paved Shoulders Fillets

4120.07

 

15

45

 

 

 

4

 

 

 

 

11

 

 

Note: Material with Al₂O₃ not exceeding 0.7 or A-freeze not exceeding 10 may have an abrasion maximum of 55.


 

 

AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE

October 21, 2014

(See Specifications for Complete Details.)

Matls. IM 209

Supersedes October 15, 2013

 

Appendix C

 

 

 

TEST LIMITS

Spec #

F & T

A

F & T

C

LA Abrasion

Absorption

Chert

Shale

Clay Lumps

Plastic Index

Mortar Strength

Al₂O₃ Limit

Pore Index

Gradation Number

Granular Subbase

 

4121

25

 

50

 

 

 

 

 

 

1.5

 

12a(Cr. St.) 12b(Grav.)

 

 

Note: Combinations of crushed PCC, sand, crushed gravel, or crushed stone may be used.

 

 

Specification limits are for crushed stone or crushed gravel.

Crushed Stone-Base

Macadam Stone

4122

 

10

50

 

 

 

 

 

 

 

 

13(Visual) Per 4122.02

 

 

Note: Choke stone see 4122.03 for details; when produced from Macadam has certified inspection of 1/3000 ton.

Modified Subbase

 

4123

 

15

45

 

 

 

 

7

(Gravel)

 

4.7(-#40)

 

14

 

 

Note: Material with Al₂O₃ not exceeding 0.7 (+4) or A-freeze not exceeding 10 may have an abrasion maximum of 55.

 

 

Note: If gravel only, 75% of +3/8 must be crushed with a minimum of one fractured face.

 

 

Note: Reclaimed pavements meeting Materials IM 210 may be used with no more than 50% RAP.

Aggregate for Slurry Mixture

 

4124.03

10

 

40

 

 

5

 

 

 

0.7

 

22 or 23

 

 

Note: Friction Type 4 or better, sand equivalent of not less than 45, and organic materials maximum 0.01%.

Aggregate for Bituminous Sealcoat

 

4125.03

 

10

40

 

 

5

 

 

 

 

 

1, 19-21

 

 

Note: Friction Type 4 or better, shale on sand cover aggregate shall not exceed 2% maximum.

Coarse Aggregate for HMA

Type A

4127.02

10

 

45

6.0

 

 

0.5

 

 

0.7

 

Per Form 955

Type B

 

 

 

 

 

 

 

 

 

 

 

 

 

Primary

4127.02

25

10

45

6.0

 

 

 

 

 

1.5

 

Per Form 955

Non-Primary

4127.02

45

10

45

6.0

 

 

 

 

 

2.5

 

Per Form 955

 

 

Note: Organic materials maximum 0.01%.

Fine Aggregate for HMA

 

4127.03

 

 

 

 

 

 

 

 

 

 

 

Per Form 955

 

 

Note: Organic materials maximum 0.01%.

 

 

Note: Natural sand shall have no more than 50% retained between two consecutive sieves below the #4 sieve.

 

 

Note: Crushed gravel or stone processed from coarse aggregate meeting requirements of 4127.02.

 


 

 

AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE

October 21, 2014

(See Specifications for Complete Details.)

Matls. IM 209

Supersedes October 15, 2013

 

Appendix C

 

 

 

TEST LIMITS

Spec #

F & T

A

F & T

C

LA Abrasion

Absorption

Chert

Shale

Clay Lumps

Plastic Index

Mortar Strength

Al₂O₃ Limit

Pore Index

Gradation Number

Combination of Materials

Type A

4127.04

 

 

 

 

 

 

 

 

 

 

 

Per Form 955

 

 

Note: The fine portion of combined materials shall not exceed 2% shale retained on the #16 sieve.

Type B

 

Note: The fine portion of combined materials shall not exceed 5% shale retained on the #16 sieve.

Revetment Stone

 

Note: Rocks that split into layers less than 4 thick shall not be used.

Class A

4130.01

10

 

50

 

 

 

 

 

 

0.7

25

Visual

Class B

4130.01

10

 

50

 

 

 

 

 

 

0.7

25

Visual

Class D

4130.01

 

10

50

 

 

 

 

 

 

 

 

Visual

Class E and C

4130.01

10

 

50

 

 

 

 

 

 

0.7

25

Visual

 

 

Note: See Specification 4130.01 for bedding plane/concrete slab thickness requirements.

 

 

Note: See 4130.04 for gradation requirements.

Erosion Stone

4130.05

 

15

50

 

 

 

5

 

 

 

 

Visual

Gabion Stone

4130.08

10

 

50

 

 

 

 

 

 

0.7

 

Visual

 

 

Note: See 4130.07 for gradation requirements.

Porous Backfill

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4131

10

 

50

 

 

5(+4)

 

 

 

0.7

 

29

 

 

Note: Material shall be free of visible clay and objectionable clay coating.

Special Backfill

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4132.01

 

 

 

 

 

 

 

 

 

 

 

30,31

Crushed Stone/PCC/CCP/Reclaimed HMA; Mixtures of Gravel, Sand and Soil or Uniformly blended combinations of the above.

Gravel

4132.03

 

 

 

 

 

 

 

10

 

 

 

31

 

 

Note: Organic material of no more than 1% on fraction passing the #40 sieve.

Granular Backfill

 

4133

 

20

55

 

 

 

4

 

 

 

 

32*,**

 

 

Note: C Freeze + Abrasion not to exceed 65%.

 

 

*See 4133.04 for gradation when backfill is under flowable mortar.

Floodable Backfill

 

 

 

4134

**See 4134.02 for gradation requirements

Recycled PCC

Note: Recycled PCC and Recycled Composite must meet gradation and sampling frequency of the intended product; and meet the requirements of IM 210.

Recycled Composite